/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 14:25:49,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 14:25:49,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 14:25:49,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-18 14:25:49,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-18 14:25:49,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-18 14:25:49,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-18 14:25:49,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-18 14:25:49,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-18 14:25:49,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-18 14:25:49,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-18 14:25:49,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-02-18 14:25:49,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 14:25:49,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 14:25:49,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 14:25:49,845 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-18 14:25:49,871 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 14:25:49,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 14:25:49,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 14:25:49,872 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 14:25:49,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 14:25:49,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 14:25:49,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 14:25:49,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 14:25:49,873 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 14:25:49,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 14:25:49,874 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 14:25:49,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 14:25:49,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 14:25:49,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 14:25:49,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 14:25:49,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 14:25:49,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 14:25:49,874 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 14:25:49,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 14:25:49,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 14:25:49,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 14:25:49,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 14:25:49,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 14:25:49,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 14:25:49,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 14:25:49,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 14:25:49,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 14:25:49,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 14:25:49,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 14:25:49,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 14:25:49,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 14:25:49,875 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 14:25:49,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 14:25:49,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 14:25:50,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 14:25:50,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 14:25:50,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 14:25:50,100 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-18 14:25:50,101 INFO L275 PluginConnector]: CDTParser initialized [2022-02-18 14:25:50,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2022-02-18 14:25:50,162 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924b9b575/38bef5ed15644e04aef4476faa294105/FLAG5bb302c68 [2022-02-18 14:25:50,531 INFO L306 CDTParser]: Found 1 translation units. [2022-02-18 14:25:50,532 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2022-02-18 14:25:50,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924b9b575/38bef5ed15644e04aef4476faa294105/FLAG5bb302c68 [2022-02-18 14:25:50,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924b9b575/38bef5ed15644e04aef4476faa294105 [2022-02-18 14:25:50,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 14:25:50,559 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-18 14:25:50,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-18 14:25:50,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-18 14:25:50,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-18 14:25:50,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:25:50" (1/1) ... [2022-02-18 14:25:50,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723ff4da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:50, skipping insertion in model container [2022-02-18 14:25:50,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:25:50" (1/1) ... [2022-02-18 14:25:50,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-18 14:25:50,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-18 14:25:50,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c[2856,2869] [2022-02-18 14:25:50,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 14:25:50,800 INFO L203 MainTranslator]: Completed pre-run [2022-02-18 14:25:50,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c[2856,2869] [2022-02-18 14:25:50,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 14:25:50,833 INFO L208 MainTranslator]: Completed translation [2022-02-18 14:25:50,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:50 WrapperNode [2022-02-18 14:25:50,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-18 14:25:50,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 14:25:50,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 14:25:50,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 14:25:50,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:50" (1/1) ... [2022-02-18 14:25:50,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:50" (1/1) ... [2022-02-18 14:25:50,868 INFO L137 Inliner]: procedures = 22, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-02-18 14:25:50,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 14:25:50,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 14:25:50,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 14:25:50,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 14:25:50,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:50" (1/1) ... [2022-02-18 14:25:50,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:50" (1/1) ... [2022-02-18 14:25:50,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:50" (1/1) ... [2022-02-18 14:25:50,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:50" (1/1) ... [2022-02-18 14:25:50,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:50" (1/1) ... [2022-02-18 14:25:50,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:50" (1/1) ... [2022-02-18 14:25:50,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:50" (1/1) ... [2022-02-18 14:25:50,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 14:25:50,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 14:25:50,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 14:25:50,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 14:25:50,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:50" (1/1) ... [2022-02-18 14:25:50,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 14:25:50,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:25:50,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-18 14:25:50,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-18 14:25:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-18 14:25:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-18 14:25:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-18 14:25:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-18 14:25:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-18 14:25:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-18 14:25:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-18 14:25:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-18 14:25:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-18 14:25:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-18 14:25:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-18 14:25:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-18 14:25:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 14:25:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 14:25:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-18 14:25:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-18 14:25:50,954 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 14:25:51,015 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 14:25:51,016 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 14:25:51,270 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 14:25:51,308 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 14:25:51,308 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-18 14:25:51,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:25:51 BoogieIcfgContainer [2022-02-18 14:25:51,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 14:25:51,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 14:25:51,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 14:25:51,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 14:25:51,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 02:25:50" (1/3) ... [2022-02-18 14:25:51,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9d98e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:25:51, skipping insertion in model container [2022-02-18 14:25:51,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:50" (2/3) ... [2022-02-18 14:25:51,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9d98e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:25:51, skipping insertion in model container [2022-02-18 14:25:51,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:25:51" (3/3) ... [2022-02-18 14:25:51,316 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-3-extended.wvr.c [2022-02-18 14:25:51,319 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 14:25:51,320 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 14:25:51,320 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 14:25:51,320 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 14:25:51,370 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,370 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,370 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,370 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,374 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,374 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,374 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,374 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,375 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,376 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,376 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,376 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,376 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,377 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,377 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,377 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,377 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,378 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,378 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,378 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,379 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,381 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,383 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,383 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,383 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,383 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,384 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,384 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,385 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,385 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,385 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,385 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,386 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:51,389 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-18 14:25:51,418 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 14:25:51,422 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 14:25:51,423 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-18 14:25:51,431 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 123 places, 129 transitions, 282 flow [2022-02-18 14:25:51,763 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10468 states, 10467 states have (on average 4.478742715200153) internal successors, (46879), 10467 states have internal predecessors, (46879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:51,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 10468 states, 10467 states have (on average 4.478742715200153) internal successors, (46879), 10467 states have internal predecessors, (46879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:51,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-18 14:25:51,923 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:51,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:25:51,924 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:25:51,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:51,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1493028026, now seen corresponding path program 1 times [2022-02-18 14:25:51,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:51,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233007119] [2022-02-18 14:25:51,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:51,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:52,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:25:52,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:52,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233007119] [2022-02-18 14:25:52,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233007119] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:25:52,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:25:52,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-18 14:25:52,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341705366] [2022-02-18 14:25:52,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:25:52,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-18 14:25:52,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:52,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-18 14:25:52,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 14:25:52,183 INFO L87 Difference]: Start difference. First operand has 10468 states, 10467 states have (on average 4.478742715200153) internal successors, (46879), 10467 states have internal predecessors, (46879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:52,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:25:52,390 INFO L93 Difference]: Finished difference Result 10468 states and 44607 transitions. [2022-02-18 14:25:52,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 14:25:52,393 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-02-18 14:25:52,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:25:52,486 INFO L225 Difference]: With dead ends: 10468 [2022-02-18 14:25:52,489 INFO L226 Difference]: Without dead ends: 10467 [2022-02-18 14:25:52,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 14:25:52,499 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:25:52,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:25:52,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2022-02-18 14:25:52,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 10467. [2022-02-18 14:25:52,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10467 states, 10466 states have (on average 4.261991209631186) internal successors, (44606), 10466 states have internal predecessors, (44606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:53,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10467 states to 10467 states and 44606 transitions. [2022-02-18 14:25:53,091 INFO L78 Accepts]: Start accepts. Automaton has 10467 states and 44606 transitions. Word has length 71 [2022-02-18 14:25:53,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:25:53,092 INFO L470 AbstractCegarLoop]: Abstraction has 10467 states and 44606 transitions. [2022-02-18 14:25:53,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:53,092 INFO L276 IsEmpty]: Start isEmpty. Operand 10467 states and 44606 transitions. [2022-02-18 14:25:53,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-18 14:25:53,124 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:53,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:25:53,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 14:25:53,125 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:25:53,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:53,127 INFO L85 PathProgramCache]: Analyzing trace with hash 780047271, now seen corresponding path program 1 times [2022-02-18 14:25:53,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:53,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056135360] [2022-02-18 14:25:53,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:53,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:53,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:25:53,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:53,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056135360] [2022-02-18 14:25:53,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056135360] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:25:53,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:25:53,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 14:25:53,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788611511] [2022-02-18 14:25:53,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:25:53,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 14:25:53,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:53,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 14:25:53,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:25:53,229 INFO L87 Difference]: Start difference. First operand 10467 states and 44606 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:53,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:25:53,475 INFO L93 Difference]: Finished difference Result 18067 states and 77996 transitions. [2022-02-18 14:25:53,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 14:25:53,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-02-18 14:25:53,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:25:53,646 INFO L225 Difference]: With dead ends: 18067 [2022-02-18 14:25:53,646 INFO L226 Difference]: Without dead ends: 18067 [2022-02-18 14:25:53,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:25:53,649 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 59 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:25:53,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 193 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:25:53,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18067 states. [2022-02-18 14:25:54,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18067 to 16547. [2022-02-18 14:25:54,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16547 states, 16546 states have (on average 4.337846005076756) internal successors, (71774), 16546 states have internal predecessors, (71774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:54,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16547 states to 16547 states and 71774 transitions. [2022-02-18 14:25:54,363 INFO L78 Accepts]: Start accepts. Automaton has 16547 states and 71774 transitions. Word has length 71 [2022-02-18 14:25:54,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:25:54,363 INFO L470 AbstractCegarLoop]: Abstraction has 16547 states and 71774 transitions. [2022-02-18 14:25:54,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:54,364 INFO L276 IsEmpty]: Start isEmpty. Operand 16547 states and 71774 transitions. [2022-02-18 14:25:54,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-02-18 14:25:54,410 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:54,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:25:54,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 14:25:54,410 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:25:54,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:54,411 INFO L85 PathProgramCache]: Analyzing trace with hash -631466113, now seen corresponding path program 1 times [2022-02-18 14:25:54,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:54,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691394184] [2022-02-18 14:25:54,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:54,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:54,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:25:54,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:54,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691394184] [2022-02-18 14:25:54,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691394184] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:25:54,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:25:54,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 14:25:54,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802307566] [2022-02-18 14:25:54,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:25:54,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 14:25:54,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:54,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 14:25:54,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:25:54,468 INFO L87 Difference]: Start difference. First operand 16547 states and 71774 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:54,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:25:54,732 INFO L93 Difference]: Finished difference Result 29117 states and 127535 transitions. [2022-02-18 14:25:54,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 14:25:54,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-02-18 14:25:54,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:25:54,870 INFO L225 Difference]: With dead ends: 29117 [2022-02-18 14:25:54,870 INFO L226 Difference]: Without dead ends: 29117 [2022-02-18 14:25:54,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:25:54,872 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 43 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:25:54,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 189 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:25:55,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29117 states. [2022-02-18 14:25:55,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29117 to 26603. [2022-02-18 14:25:56,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26603 states, 26602 states have (on average 4.403315540184948) internal successors, (117137), 26602 states have internal predecessors, (117137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:56,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26603 states to 26603 states and 117137 transitions. [2022-02-18 14:25:56,306 INFO L78 Accepts]: Start accepts. Automaton has 26603 states and 117137 transitions. Word has length 79 [2022-02-18 14:25:56,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:25:56,307 INFO L470 AbstractCegarLoop]: Abstraction has 26603 states and 117137 transitions. [2022-02-18 14:25:56,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:56,307 INFO L276 IsEmpty]: Start isEmpty. Operand 26603 states and 117137 transitions. [2022-02-18 14:25:56,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-18 14:25:56,380 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:56,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:25:56,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 14:25:56,381 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:25:56,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:56,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2139630789, now seen corresponding path program 1 times [2022-02-18 14:25:56,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:56,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028533149] [2022-02-18 14:25:56,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:56,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:56,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:25:56,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:56,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028533149] [2022-02-18 14:25:56,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028533149] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:25:56,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:25:56,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 14:25:56,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841426454] [2022-02-18 14:25:56,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:25:56,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 14:25:56,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:56,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 14:25:56,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:25:56,438 INFO L87 Difference]: Start difference. First operand 26603 states and 117137 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:57,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:25:57,046 INFO L93 Difference]: Finished difference Result 44903 states and 200987 transitions. [2022-02-18 14:25:57,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 14:25:57,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-02-18 14:25:57,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:25:57,266 INFO L225 Difference]: With dead ends: 44903 [2022-02-18 14:25:57,266 INFO L226 Difference]: Without dead ends: 44903 [2022-02-18 14:25:57,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:25:57,267 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 29 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:25:57,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 185 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:25:57,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44903 states. [2022-02-18 14:25:58,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44903 to 41243. [2022-02-18 14:25:58,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41243 states, 41242 states have (on average 4.4933562872799575) internal successors, (185315), 41242 states have internal predecessors, (185315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:58,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41243 states to 41243 states and 185315 transitions. [2022-02-18 14:25:58,947 INFO L78 Accepts]: Start accepts. Automaton has 41243 states and 185315 transitions. Word has length 87 [2022-02-18 14:25:58,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:25:58,948 INFO L470 AbstractCegarLoop]: Abstraction has 41243 states and 185315 transitions. [2022-02-18 14:25:58,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:58,948 INFO L276 IsEmpty]: Start isEmpty. Operand 41243 states and 185315 transitions. [2022-02-18 14:25:59,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-02-18 14:25:59,313 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:59,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:25:59,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-18 14:25:59,314 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:25:59,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:59,315 INFO L85 PathProgramCache]: Analyzing trace with hash 230424881, now seen corresponding path program 1 times [2022-02-18 14:25:59,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:59,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401409911] [2022-02-18 14:25:59,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:59,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:25:59,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:59,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401409911] [2022-02-18 14:25:59,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401409911] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:25:59,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:25:59,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-18 14:25:59,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686484831] [2022-02-18 14:25:59,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:25:59,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-18 14:25:59,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:59,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-18 14:25:59,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-18 14:25:59,447 INFO L87 Difference]: Start difference. First operand 41243 states and 185315 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:00,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:26:00,166 INFO L93 Difference]: Finished difference Result 63494 states and 271148 transitions. [2022-02-18 14:26:00,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 14:26:00,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-02-18 14:26:00,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:26:00,680 INFO L225 Difference]: With dead ends: 63494 [2022-02-18 14:26:00,680 INFO L226 Difference]: Without dead ends: 63494 [2022-02-18 14:26:00,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-18 14:26:00,681 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 162 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:26:00,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 323 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:26:00,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63494 states. [2022-02-18 14:26:02,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63494 to 56411. [2022-02-18 14:26:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56411 states, 56410 states have (on average 4.325811026413756) internal successors, (244019), 56410 states have internal predecessors, (244019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:02,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56411 states to 56411 states and 244019 transitions. [2022-02-18 14:26:02,837 INFO L78 Accepts]: Start accepts. Automaton has 56411 states and 244019 transitions. Word has length 95 [2022-02-18 14:26:02,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:26:02,837 INFO L470 AbstractCegarLoop]: Abstraction has 56411 states and 244019 transitions. [2022-02-18 14:26:02,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:02,838 INFO L276 IsEmpty]: Start isEmpty. Operand 56411 states and 244019 transitions. [2022-02-18 14:26:03,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-18 14:26:03,022 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:26:03,023 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:26:03,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-18 14:26:03,023 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:26:03,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:26:03,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1240907378, now seen corresponding path program 1 times [2022-02-18 14:26:03,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:26:03,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199705035] [2022-02-18 14:26:03,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:26:03,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:26:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:26:03,117 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-02-18 14:26:03,117 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:26:03,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199705035] [2022-02-18 14:26:03,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199705035] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:26:03,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:26:03,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-18 14:26:03,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617987524] [2022-02-18 14:26:03,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:26:03,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-18 14:26:03,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:26:03,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-18 14:26:03,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-18 14:26:03,118 INFO L87 Difference]: Start difference. First operand 56411 states and 244019 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:04,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:26:04,213 INFO L93 Difference]: Finished difference Result 85886 states and 352610 transitions. [2022-02-18 14:26:04,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 14:26:04,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-02-18 14:26:04,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:26:04,634 INFO L225 Difference]: With dead ends: 85886 [2022-02-18 14:26:04,634 INFO L226 Difference]: Without dead ends: 85886 [2022-02-18 14:26:04,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-18 14:26:04,635 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 153 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:26:04,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 310 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:26:04,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85886 states. [2022-02-18 14:26:06,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85886 to 77795. [2022-02-18 14:26:06,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77795 states, 77794 states have (on average 4.1473635498881665) internal successors, (322640), 77794 states have internal predecessors, (322640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:07,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77795 states to 77795 states and 322640 transitions. [2022-02-18 14:26:07,681 INFO L78 Accepts]: Start accepts. Automaton has 77795 states and 322640 transitions. Word has length 100 [2022-02-18 14:26:07,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:26:07,682 INFO L470 AbstractCegarLoop]: Abstraction has 77795 states and 322640 transitions. [2022-02-18 14:26:07,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:07,695 INFO L276 IsEmpty]: Start isEmpty. Operand 77795 states and 322640 transitions. [2022-02-18 14:26:07,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-02-18 14:26:07,963 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:26:07,963 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:26:07,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-18 14:26:07,964 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:26:07,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:26:07,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1841694120, now seen corresponding path program 1 times [2022-02-18 14:26:07,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:26:07,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108915447] [2022-02-18 14:26:07,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:26:07,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:26:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:26:08,036 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-18 14:26:08,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:26:08,037 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108915447] [2022-02-18 14:26:08,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108915447] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:26:08,037 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:26:08,037 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-18 14:26:08,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610983056] [2022-02-18 14:26:08,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:26:08,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-18 14:26:08,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:26:08,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-18 14:26:08,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-18 14:26:08,038 INFO L87 Difference]: Start difference. First operand 77795 states and 322640 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:09,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:26:09,306 INFO L93 Difference]: Finished difference Result 115798 states and 458290 transitions. [2022-02-18 14:26:09,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 14:26:09,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2022-02-18 14:26:09,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:26:10,150 INFO L225 Difference]: With dead ends: 115798 [2022-02-18 14:26:10,150 INFO L226 Difference]: Without dead ends: 115798 [2022-02-18 14:26:10,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-18 14:26:10,151 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 144 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:26:10,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 301 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:26:10,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115798 states. [2022-02-18 14:26:12,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115798 to 105427. [2022-02-18 14:26:13,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105427 states, 105426 states have (on average 3.9930757118737312) internal successors, (420974), 105426 states have internal predecessors, (420974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105427 states to 105427 states and 420974 transitions. [2022-02-18 14:26:14,039 INFO L78 Accepts]: Start accepts. Automaton has 105427 states and 420974 transitions. Word has length 105 [2022-02-18 14:26:14,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:26:14,040 INFO L470 AbstractCegarLoop]: Abstraction has 105427 states and 420974 transitions. [2022-02-18 14:26:14,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:14,040 INFO L276 IsEmpty]: Start isEmpty. Operand 105427 states and 420974 transitions. [2022-02-18 14:26:14,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-18 14:26:14,746 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:26:14,747 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:26:14,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-18 14:26:14,747 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:26:14,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:26:14,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1040948797, now seen corresponding path program 1 times [2022-02-18 14:26:14,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:26:14,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620212588] [2022-02-18 14:26:14,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:26:14,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:26:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:26:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 14:26:14,952 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:26:14,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620212588] [2022-02-18 14:26:14,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620212588] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:26:14,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722132343] [2022-02-18 14:26:14,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:26:14,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:26:14,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:26:14,954 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:26:14,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-18 14:26:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:26:15,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-18 14:26:15,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:26:15,363 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 14:26:15,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:26:15,589 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 14:26:15,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722132343] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:26:15,589 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:26:15,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2022-02-18 14:26:15,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217460077] [2022-02-18 14:26:15,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:26:15,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 14:26:15,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:26:15,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 14:26:15,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:26:15,590 INFO L87 Difference]: Start difference. First operand 105427 states and 420974 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:18,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:26:18,048 INFO L93 Difference]: Finished difference Result 210888 states and 832636 transitions. [2022-02-18 14:26:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 14:26:18,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-02-18 14:26:18,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:26:19,696 INFO L225 Difference]: With dead ends: 210888 [2022-02-18 14:26:19,697 INFO L226 Difference]: Without dead ends: 210738 [2022-02-18 14:26:19,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 213 SyntacticMatches, 10 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-18 14:26:19,701 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 167 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:26:19,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 1490 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:26:20,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210738 states. [2022-02-18 14:26:26,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210738 to 190713. [2022-02-18 14:26:27,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190713 states, 190712 states have (on average 3.9919197533453583) internal successors, (761307), 190712 states have internal predecessors, (761307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:29,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190713 states to 190713 states and 761307 transitions. [2022-02-18 14:26:29,390 INFO L78 Accepts]: Start accepts. Automaton has 190713 states and 761307 transitions. Word has length 110 [2022-02-18 14:26:29,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:26:29,390 INFO L470 AbstractCegarLoop]: Abstraction has 190713 states and 761307 transitions. [2022-02-18 14:26:29,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:29,391 INFO L276 IsEmpty]: Start isEmpty. Operand 190713 states and 761307 transitions. [2022-02-18 14:26:30,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-18 14:26:30,546 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:26:30,546 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:26:30,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-18 14:26:30,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:26:30,764 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:26:30,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:26:30,764 INFO L85 PathProgramCache]: Analyzing trace with hash -602034079, now seen corresponding path program 2 times [2022-02-18 14:26:30,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:26:30,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007671273] [2022-02-18 14:26:30,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:26:30,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:26:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:26:31,018 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:26:31,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:26:31,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007671273] [2022-02-18 14:26:31,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007671273] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:26:31,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098848675] [2022-02-18 14:26:31,019 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 14:26:31,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:26:31,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:26:31,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:26:31,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-18 14:26:31,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:26:31,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:26:31,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-18 14:26:31,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:26:31,506 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:26:31,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:26:31,716 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:26:31,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098848675] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:26:31,717 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:26:31,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2022-02-18 14:26:31,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5477551] [2022-02-18 14:26:31,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:26:31,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:26:31,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:26:31,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:26:31,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:26:31,718 INFO L87 Difference]: Start difference. First operand 190713 states and 761307 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:36,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:26:36,042 INFO L93 Difference]: Finished difference Result 318895 states and 1262121 transitions. [2022-02-18 14:26:36,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 14:26:36,043 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-02-18 14:26:36,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:26:39,148 INFO L225 Difference]: With dead ends: 318895 [2022-02-18 14:26:39,149 INFO L226 Difference]: Without dead ends: 318745 [2022-02-18 14:26:39,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 217 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:26:39,149 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 226 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:26:39,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2079 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:26:39,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318745 states. [2022-02-18 14:26:49,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318745 to 202457. [2022-02-18 14:26:49,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202457 states, 202456 states have (on average 4.008036314063303) internal successors, (811451), 202456 states have internal predecessors, (811451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:51,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202457 states to 202457 states and 811451 transitions. [2022-02-18 14:26:51,881 INFO L78 Accepts]: Start accepts. Automaton has 202457 states and 811451 transitions. Word has length 110 [2022-02-18 14:26:51,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:26:51,882 INFO L470 AbstractCegarLoop]: Abstraction has 202457 states and 811451 transitions. [2022-02-18 14:26:51,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:26:51,883 INFO L276 IsEmpty]: Start isEmpty. Operand 202457 states and 811451 transitions. [2022-02-18 14:26:53,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-18 14:26:53,420 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:26:53,420 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:26:53,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-18 14:26:53,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-18 14:26:53,637 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:26:53,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:26:53,638 INFO L85 PathProgramCache]: Analyzing trace with hash 846260631, now seen corresponding path program 3 times [2022-02-18 14:26:53,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:26:53,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986819737] [2022-02-18 14:26:53,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:26:53,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:26:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:26:53,866 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:26:53,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:26:53,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986819737] [2022-02-18 14:26:53,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986819737] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:26:53,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823252454] [2022-02-18 14:26:53,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 14:26:53,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:26:53,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:26:53,868 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:26:53,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-18 14:26:54,013 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-18 14:26:54,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:26:54,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-18 14:26:54,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:26:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:26:54,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:26:54,740 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:26:54,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823252454] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:26:54,740 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:26:54,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2022-02-18 14:26:54,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258360358] [2022-02-18 14:26:54,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:26:54,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:26:54,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:26:54,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:26:54,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:26:54,742 INFO L87 Difference]: Start difference. First operand 202457 states and 811451 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:00,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:27:00,361 INFO L93 Difference]: Finished difference Result 413715 states and 1648838 transitions. [2022-02-18 14:27:00,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 14:27:00,361 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-02-18 14:27:00,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:27:04,295 INFO L225 Difference]: With dead ends: 413715 [2022-02-18 14:27:04,295 INFO L226 Difference]: Without dead ends: 413565 [2022-02-18 14:27:04,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 217 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:27:04,296 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 221 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:27:04,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2046 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:27:05,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413565 states. [2022-02-18 14:27:20,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413565 to 334905. [2022-02-18 14:27:21,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334905 states, 334904 states have (on average 4.0790405608771465) internal successors, (1366087), 334904 states have internal predecessors, (1366087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:24,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334905 states to 334905 states and 1366087 transitions. [2022-02-18 14:27:24,714 INFO L78 Accepts]: Start accepts. Automaton has 334905 states and 1366087 transitions. Word has length 110 [2022-02-18 14:27:24,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:27:24,714 INFO L470 AbstractCegarLoop]: Abstraction has 334905 states and 1366087 transitions. [2022-02-18 14:27:24,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:24,715 INFO L276 IsEmpty]: Start isEmpty. Operand 334905 states and 1366087 transitions. [2022-02-18 14:27:27,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-18 14:27:27,354 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:27:27,354 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:27:27,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-18 14:27:27,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:27:27,555 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:27:27,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:27:27,555 INFO L85 PathProgramCache]: Analyzing trace with hash -588909911, now seen corresponding path program 4 times [2022-02-18 14:27:27,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:27:27,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237137592] [2022-02-18 14:27:27,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:27:27,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:27:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:27:27,778 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:27:27,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:27:27,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237137592] [2022-02-18 14:27:27,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237137592] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:27:27,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420846140] [2022-02-18 14:27:27,779 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 14:27:27,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:27:27,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:27:27,780 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:27:27,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-18 14:27:27,859 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 14:27:27,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:27:27,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-18 14:27:27,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:27:28,237 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:27:28,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:27:28,628 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:27:28,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420846140] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:27:28,628 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:27:28,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 10 [2022-02-18 14:27:28,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431793962] [2022-02-18 14:27:28,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:27:28,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-18 14:27:28,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:27:28,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-18 14:27:28,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-02-18 14:27:28,630 INFO L87 Difference]: Start difference. First operand 334905 states and 1366087 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:34,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:27:34,061 INFO L93 Difference]: Finished difference Result 371265 states and 1494304 transitions. [2022-02-18 14:27:34,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 14:27:34,061 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-02-18 14:27:34,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:27:36,914 INFO L225 Difference]: With dead ends: 371265 [2022-02-18 14:27:36,914 INFO L226 Difference]: Without dead ends: 371115 [2022-02-18 14:27:36,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 216 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-02-18 14:27:36,915 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 265 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 2621 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:27:36,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 2621 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:27:37,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371115 states. [2022-02-18 14:27:46,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371115 to 136153. [2022-02-18 14:27:46,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136153 states, 136152 states have (on average 3.904187966390505) internal successors, (531563), 136152 states have internal predecessors, (531563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:48,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136153 states to 136153 states and 531563 transitions. [2022-02-18 14:27:48,261 INFO L78 Accepts]: Start accepts. Automaton has 136153 states and 531563 transitions. Word has length 110 [2022-02-18 14:27:48,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:27:48,262 INFO L470 AbstractCegarLoop]: Abstraction has 136153 states and 531563 transitions. [2022-02-18 14:27:48,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:48,262 INFO L276 IsEmpty]: Start isEmpty. Operand 136153 states and 531563 transitions. [2022-02-18 14:27:48,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-18 14:27:48,694 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:27:48,694 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:27:48,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-18 14:27:48,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:27:48,908 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:27:48,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:27:48,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1408416461, now seen corresponding path program 5 times [2022-02-18 14:27:48,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:27:48,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929173058] [2022-02-18 14:27:48,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:27:48,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:27:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:27:48,955 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-18 14:27:48,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:27:48,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929173058] [2022-02-18 14:27:48,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929173058] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:27:48,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:27:48,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 14:27:48,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372173798] [2022-02-18 14:27:48,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:27:48,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 14:27:48,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:27:48,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 14:27:48,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:27:48,958 INFO L87 Difference]: Start difference. First operand 136153 states and 531563 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:50,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:27:50,411 INFO L93 Difference]: Finished difference Result 131963 states and 512419 transitions. [2022-02-18 14:27:50,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 14:27:50,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-02-18 14:27:50,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:27:51,682 INFO L225 Difference]: With dead ends: 131963 [2022-02-18 14:27:51,682 INFO L226 Difference]: Without dead ends: 130748 [2022-02-18 14:27:51,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:27:51,683 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 62 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:27:51,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 178 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:27:51,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130748 states. [2022-02-18 14:27:54,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130748 to 78608. [2022-02-18 14:27:55,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78608 states, 78607 states have (on average 3.8701133486839594) internal successors, (304218), 78607 states have internal predecessors, (304218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:55,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78608 states to 78608 states and 304218 transitions. [2022-02-18 14:27:55,813 INFO L78 Accepts]: Start accepts. Automaton has 78608 states and 304218 transitions. Word has length 115 [2022-02-18 14:27:55,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:27:55,813 INFO L470 AbstractCegarLoop]: Abstraction has 78608 states and 304218 transitions. [2022-02-18 14:27:55,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:55,814 INFO L276 IsEmpty]: Start isEmpty. Operand 78608 states and 304218 transitions. [2022-02-18 14:27:56,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-18 14:27:56,042 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:27:56,042 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:27:56,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-18 14:27:56,042 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:27:56,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:27:56,043 INFO L85 PathProgramCache]: Analyzing trace with hash 423012440, now seen corresponding path program 6 times [2022-02-18 14:27:56,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:27:56,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357670919] [2022-02-18 14:27:56,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:27:56,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:27:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:27:56,080 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-02-18 14:27:56,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:27:56,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357670919] [2022-02-18 14:27:56,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357670919] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:27:56,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:27:56,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 14:27:56,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417101115] [2022-02-18 14:27:56,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:27:56,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 14:27:56,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:27:56,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 14:27:56,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:27:56,081 INFO L87 Difference]: Start difference. First operand 78608 states and 304218 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:56,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:27:56,929 INFO L93 Difference]: Finished difference Result 75410 states and 290690 transitions. [2022-02-18 14:27:56,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 14:27:56,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-02-18 14:27:56,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:27:57,384 INFO L225 Difference]: With dead ends: 75410 [2022-02-18 14:27:57,384 INFO L226 Difference]: Without dead ends: 67697 [2022-02-18 14:27:57,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:27:57,385 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 64 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:27:57,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 174 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:27:57,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67697 states. [2022-02-18 14:27:58,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67697 to 41957. [2022-02-18 14:27:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41957 states, 41956 states have (on average 3.838068452664696) internal successors, (161030), 41956 states have internal predecessors, (161030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:59,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41957 states to 41957 states and 161030 transitions. [2022-02-18 14:27:59,107 INFO L78 Accepts]: Start accepts. Automaton has 41957 states and 161030 transitions. Word has length 115 [2022-02-18 14:27:59,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:27:59,107 INFO L470 AbstractCegarLoop]: Abstraction has 41957 states and 161030 transitions. [2022-02-18 14:27:59,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:59,107 INFO L276 IsEmpty]: Start isEmpty. Operand 41957 states and 161030 transitions. [2022-02-18 14:27:59,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-18 14:27:59,218 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:27:59,218 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:27:59,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-18 14:27:59,218 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:27:59,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:27:59,218 INFO L85 PathProgramCache]: Analyzing trace with hash -140919818, now seen corresponding path program 7 times [2022-02-18 14:27:59,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:27:59,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092297696] [2022-02-18 14:27:59,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:27:59,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:27:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:27:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-18 14:27:59,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:27:59,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092297696] [2022-02-18 14:27:59,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092297696] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:27:59,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:27:59,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 14:27:59,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968727081] [2022-02-18 14:27:59,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:27:59,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 14:27:59,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:27:59,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 14:27:59,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:27:59,257 INFO L87 Difference]: Start difference. First operand 41957 states and 161030 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:59,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:27:59,783 INFO L93 Difference]: Finished difference Result 38102 states and 147194 transitions. [2022-02-18 14:27:59,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 14:27:59,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-02-18 14:27:59,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:27:59,783 INFO L225 Difference]: With dead ends: 38102 [2022-02-18 14:27:59,783 INFO L226 Difference]: Without dead ends: 0 [2022-02-18 14:27:59,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:27:59,784 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 60 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:27:59,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 155 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:27:59,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-18 14:27:59,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-18 14:27:59,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:59,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-18 14:27:59,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 115 [2022-02-18 14:27:59,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:27:59,785 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-18 14:27:59,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:27:59,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-18 14:27:59,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-18 14:27:59,787 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-02-18 14:27:59,788 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-18 14:27:59,788 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-18 14:27:59,788 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-18 14:27:59,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-18 14:27:59,790 INFO L732 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:27:59,791 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-18 14:27:59,791 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-18 14:27:59,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 02:27:59 BasicIcfg [2022-02-18 14:27:59,793 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-18 14:27:59,793 INFO L158 Benchmark]: Toolchain (without parser) took 129234.68ms. Allocated memory was 162.5MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 110.0MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-02-18 14:27:59,794 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 162.5MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 14:27:59,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.02ms. Allocated memory was 162.5MB in the beginning and 206.6MB in the end (delta: 44.0MB). Free memory was 109.8MB in the beginning and 180.3MB in the end (delta: -70.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-18 14:27:59,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.15ms. Allocated memory is still 206.6MB. Free memory was 180.3MB in the beginning and 178.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-18 14:27:59,794 INFO L158 Benchmark]: Boogie Preprocessor took 19.76ms. Allocated memory is still 206.6MB. Free memory was 178.7MB in the beginning and 177.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 14:27:59,795 INFO L158 Benchmark]: RCFGBuilder took 420.44ms. Allocated memory is still 206.6MB. Free memory was 177.2MB in the beginning and 162.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-02-18 14:27:59,795 INFO L158 Benchmark]: TraceAbstraction took 128481.98ms. Allocated memory was 206.6MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 162.5MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-02-18 14:27:59,796 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 162.5MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 273.02ms. Allocated memory was 162.5MB in the beginning and 206.6MB in the end (delta: 44.0MB). Free memory was 109.8MB in the beginning and 180.3MB in the end (delta: -70.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.15ms. Allocated memory is still 206.6MB. Free memory was 180.3MB in the beginning and 178.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.76ms. Allocated memory is still 206.6MB. Free memory was 178.7MB in the beginning and 177.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 420.44ms. Allocated memory is still 206.6MB. Free memory was 177.2MB in the beginning and 162.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 128481.98ms. Allocated memory was 206.6MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 162.5MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 127]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 156 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 128.4s, OverallIterations: 14, TraceHistogramMax: 3, PathProgramHistogramMax: 7, EmptinessCheckTime: 7.9s, AutomataDifference: 40.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1655 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1655 mSDsluCounter, 10347 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8638 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1649 IncrementalHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 2314 mSDtfsCounter, 1649 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 956 GetRequests, 883 SyntacticMatches, 25 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=334905occurred in iteration=10, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 73.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 561054 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 1833 NumberOfCodeBlocks, 1798 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2251 ConstructedInterpolants, 0 QuantifiedInterpolants, 7585 SizeOfPredicates, 8 NumberOfNonLiveVariables, 943 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 22 InterpolantComputations, 10 PerfectInterpolantSequences, 126/327 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-18 14:27:59,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...